Thousands of Tibetans, mostly monks and nuns, held another of their near-daily demonstrations Monday in Nepal’s capital, urging the U.N. to investigate China’s crackdown on protests in their homeland, but for the first time they were not stopped by police.

The demonstration by about 3,000 people was limited to the western edge of Katmandu. A police officer said they had orders to allow the protest as long as participants stayed away from the center of the city and did not chant any anti-China slogans.

Police have been breaking up every demonstration by Tibetan exiles since they began almost daily protests on March 10. Nepalese officials have said they cannot allow protests against China.

Nepal has been accused by the United Nations and human rights groups of using excessive force in stopping the protests. Police have beaten participants with batons, fired tear gas and detained hundreds of people.

The protesters marched Monday to the United Nations’ human rights office, where they handed a statement to officials asking the world body to investigate killings and other alleged violations of human rights in Tibet.

Doma Tsomo, one of the demonstrators who delivered the statement, said U.N. officials gave assurances the request would be conveyed to U.N. headquarters.

Thousands of Tibetan refugees live in Nepal, a key route for Tibetans fleeing Chinese rule.